EP4251123A1 - Cosmetic composition for the treatment of keratinic fibers and method comprising the application of said composition to the keratinic fibers - Google Patents
Cosmetic composition for the treatment of keratinic fibers and method comprising the application of said composition to the keratinic fibersInfo
- Publication number
- EP4251123A1 EP4251123A1 EP21824666.8A EP21824666A EP4251123A1 EP 4251123 A1 EP4251123 A1 EP 4251123A1 EP 21824666 A EP21824666 A EP 21824666A EP 4251123 A1 EP4251123 A1 EP 4251123A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- composition
- mixtures
- weight
- integer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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- 239000000835 fiber Substances 0.000 title claims abstract description 45
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- 238000000034 method Methods 0.000 title claims description 28
- 238000011282 treatment Methods 0.000 title claims description 11
- 239000000126 substance Substances 0.000 claims abstract description 29
- 102000011782 Keratins Human genes 0.000 claims abstract description 27
- 108010076876 Keratins Proteins 0.000 claims abstract description 27
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- 238000009499 grossing Methods 0.000 claims description 19
- 229920001577 copolymer Polymers 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
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- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 7
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- FIXBBOOKVFTUMJ-UHFFFAOYSA-N 1-(2-aminopropoxy)propan-2-amine Chemical compound CC(N)COCC(C)N FIXBBOOKVFTUMJ-UHFFFAOYSA-N 0.000 claims description 4
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- SJIXRGNQPBQWMK-UHFFFAOYSA-N 2-(diethylamino)ethyl 2-methylprop-2-enoate Chemical compound CCN(CC)CCOC(=O)C(C)=C SJIXRGNQPBQWMK-UHFFFAOYSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical group C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 2
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- 239000000973 cosmetic coloring agent Substances 0.000 claims description 2
- DTPCFIHYWYONMD-UHFFFAOYSA-N decaethylene glycol Chemical compound OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO DTPCFIHYWYONMD-UHFFFAOYSA-N 0.000 claims description 2
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract description 5
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/06—Preparations for styling the hair, e.g. by temporary shaping or colouring
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
- A61K8/361—Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
- A61K8/362—Polycarboxylic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
- A61K8/365—Hydroxycarboxylic acids; Ketocarboxylic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8147—Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8158—Homopolymers or copolymers of amides or imides, e.g. (meth) acrylamide; Compositions of derivatives of such polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/88—Polyamides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/896—Polysiloxanes containing atoms other than silicon, carbon, oxygen and hydrogen, e.g. dimethicone copolyol phosphate
- A61K8/897—Polysiloxanes containing atoms other than silicon, carbon, oxygen and hydrogen, e.g. dimethicone copolyol phosphate containing halogen, e.g. fluorosilicones
Definitions
- the present invention relates to cosmetic compositions for the treatment of keratin fibers and to the method for their application on a keratin substrate.
- the keratin fibers and the keratin substrate are made up of human hair.
- compositions of the invention are prepared in a cosmetically acceptable medium and the cosmetic treatment method of the keratin substrate provides for the application step on said keratin substrate of a composition as defined below
- the cosmetic treatment method of the keratin substrate provides for the application step on said keratin substrate of a composition as defined below
- This category of proteins has a high content of sulfur amino acids (especially cystine and cysteine) as well as significant quantities of acidic amino acids (especially aspartic acid and glutamic acid) and basic amino acids (especially lysine, histidine and arginine).
- the fibers SUBJECTED to this type of treatment tend to take on a dull, frizzy appearance over time with poor tensile strength (they break easily).
- compositions based on phenolic compounds and polyamines to allow the protection of a keratin substrate from high energy (UV) sun rays.
- the composition can be applied indifferently on the hair and on the skin.
- US2004191200 discloses cosmetic compositions comprising a thickener in combination with fluorinated polymers in order to coat the keratin fibers of the eyelashes increasing their volume, with a lengthening and separating effect.
- the composition is applied as it is on the eyelashes and eyebrows.
- WO201 6033591 describes a hair smoothing composition essentially consisting of at least one derivative of glyoxylic acid formed by the reaction of glyoxylic acid with at least one alpha, beta or gamma amino acid.
- aqueous cosmetic composition is applied to the hair comprising glyoxylic acid, lactic acid, an amino-modified polyether-silicone copolymer (INCI name: PEG-40/PPG-8 Methylaminopropyl/Hydroxypropyl Dimethicone Copolymer).
- the cosmetic composition is applied to the keratin fibers for 20 minutes; after which, without performing a rinsing process, a second composition based on fatty alcohols and cationic conditioning agents is applied for 10 minutes; and finally rinse and dry the hair, which is then smoothed with the plate.
- the present invention aims to develop a composition that allows to obtain a rapid smoothing/stretching of the hair, associated with a reduction in the volume of the hair, effects that are obtained in an efficient and persistent way while limiting the degradation of the hair. Surprisingly, it has been possible to verify that the smoothing/stretching effects persist even after numerous washings without the need for repeated applications of the composition after each wash.
- composition of the invention which comprises the combination of glyoxylic acid, or other carboxylic acid of similar properties, with an alkoxylated polyamine and with a fluorinated polymer, as described below.
- the invention therefore relates to a composition
- a composition comprising: a) a saturated or unsaturated carboxylic acid, and/or its organic and inorganic salts and reaction products between amino acids and carboxylic acids, with carbon number lower than 12, or mixtures thereof; b) a fluorinated polymer selected from perfluoro-acrylic or perfluoro-silicone polymers, or mixtures thereof; c) a polyamine substance selected from alkoxylated polyamines or mixtures thereof.
- the composition of the invention may further comprise one or more of the ingredients commonly used in the cosmetic industry.
- anti-caking agent antifoam
- antimicrobial antimicrobial
- antioxidant antistatic
- astringent binder
- whitening buffering
- swelling swelling
- chelating cleansing, cosmetic dye, denaturing, deodorant, detangling, emollient, emulsifier, emulsion stabilizer, film-forming, flavoring, foaming, gelling, hair conditioning, hair fixative, hair waving or smoothing, moistening, hydrotropic, masking, moisturizing, oxidizing, pearlescent, perfuming, plasticizing, preservative, propellant, reducing, re greasing, refreshing, soluble smoothing, soothing stabilizer, surfactant, tonic, UV filter, viscosity control substances.
- the pH of the composition is between 0.5 and 10.0.
- the invention also relates to the method of application of said composition on the keratin fibers of the human species.
- the present invention relates to a mixture of organic substances, dispersed in a cosmetically acceptable medium, and at least one method of applying the same mixture to the keratin fibers.
- composition according to the invention comprises:
- composition further comprises one or more of the ingredients commonly used in the cosmetic industry listed in the EU Decision 710/2019.
- composition of the invention is an aqueous composition with a pH between 0.5 and 10.0.
- each ingredient (a), (b) or (c) is in the range 0.01-30.0% with respect to the overall composition, the rest being water or an aqueous solution applicable on the hair and containing one or more cosmetically acceptable components.
- the composition can be used as such on the hair as an aqueous solution or it can be formulated as a cream or gel according to the knowledge of the cosmetic technique, as for instance described in WO2018195614.
- compositions are detailed as follows: a) Saturated or unsaturated aliphatic carboxylic acids, derivatives and salts thereof having a number of carbon atoms lower than 12 such as: adipic acid, ascorbic acid, citric acid, tartaric acid, malonic acid, glyoxylic acid, dihydroxyacetic acid, fumaric acid, itaconic acid, maleic acid, lactic acid, malic acid, glutaric acid, succinic acid, glycolic acid, and mixtures thereof.
- b) Fluorinated polymers representable by the following structures: b.1 ) Silicones with "pendant" perfluorinated chain:
- fluorosilicones belong to these families: • Perfluorononyl Dimethicone (Cas No 259725-95-6) and
- suitable alkoxylated polyamines comprise amino molecules, which have at least two primary nitrogen atoms, meaning by this term that at least two primary amino functional groups are present in each molecule, and comprise, but are not limited to, substances corresponding to the following standard formulas: c.1) - Polyetheramines composed of oxyethylene units (C2)
- xa is an integer comprised between 1 and 50 c.2) - Polyetheramines composed of oxypropylene units (C3)
- y ⁇ is an integer comprised between 1 and 50 c.3) - Polyetheramines composed of mixtures of oxypropylene (C3) and oxyethylene (C2) units
- n ⁇ is an integer comprised between 1 and 50
- alkoxylated polyamines for use in the present invention comprise, for instance, diamine compounds belonging to the Jeffamine series, such as the Jeffamine® D and Jeffamine® ED series, JEFFAMINE EDR148 and JEFFAMINE EDR, JEFFAMINE D230, JEFFAMINE D400, JEFFAMINE D2000, JEFFAMINE D4000, JEFFAMINE HK-511, JEFFAMINE ED600, JEFFAMINE ED900 and JEFFAMINE ED2003 available from Fluntsman Corporation, Salt Lake City, Utah USA. c.5) - alkoxylated polyamines corresponding to the formula (W6):
- PPG-70 bis-(2-aminopropyl) ether (CAS no. 9046-10-0), Poly (propylene glycol) bis (2-aminopropyl ether) - MERCK), ⁇ Bis-aminopropyl diglycol (Cas no. 4246-51-9) (BAXXODUR EC 130 -
- the composition of the invention is a ready-to-use mixture comprising substances (a), (b) and (c) dissolved or dispersed in a cosmetically acceptable aqueous medium having a pH between 0.5 and 10.0.
- concentration of each ingredient (a), (b) or (c) is in the range 0.01-30.0% with respect to the overall composition, the rest being water or a cosmetically acceptable medium (e.g. cream or gel) applicable on the hair.
- cosmetically acceptable medium means the set of substances of common use in the cosmetic art listed in the International Cosmetic Ingredient Dictionary and Handbook published periodically by the American "Personal Care Products Council” 1620 L Street, NW Washington, DC), classified as: anti-caking agent, anti-dandruff, anti-foam, antimicrobial, antioxidant, antistatic, astringent, binder, whitening, buffering, swelling, chelating, cleansing, cosmetic dyeing, denaturing, detangling, emollient, emulsifying, emulsion stabilizer, film-forming, flavoring, foaming, gelling, conditioning, fixative, hair waving or smoothing, moistening, hydrotropic, masking, moisturizing, mattifying, oxidizing, pearlescent, perfuming, plasticizing, solvent, preservative, smoothing, stabilizing, soothing, surfactant, UV filter, viscosity control substances; as also listed in the text of decision no.
- compositions of the invention can be formulated in liquid or semi-liquid, fluid or creamy form, such as: solutions, suspensions, lotions, creams.
- compositions of the invention are applied to the hair with a method that comprises the following basic steps: I. Applying an amount of the composition of the invention to clean hair (dry or damp);
- the process of the invention has shown that the keratin fibers after treatment are smooth, even after repeated washes (more than 6), tend to absorb less water in washes and tend to have greater resistance to breakage of the fibers themselves than hair treated with techniques or mixtures commonly used in the cosmetic art.
- Step (III) which involves the elimination of the excess amount of product compared to that which the single hair can absorb, by means of rinsing with water has proved to be very important in terms of performance as it allows to have a hair at the end of the treatment less damaged (stressed) with consequent improvement of both its appearance and its physical-mechanical characteristics (the hair is more resistant to breakage).
- compositions of the invention were compared with the best compositions based on glyoxylic acid dissolved in a cosmetically acceptable medium as described in EP2595705 with the aim of comparing the results obtainable from the composition object of the present invention with respect to the "state of the art" in hair smoothing described in patent EP2595705.
- compositions listed in Tables 1A and 1B were prepared: both tables show the details of the results obtained in curves reduction (smoothing) with mixtures containing glyoxylic acid, PPG-70 bis-(2-aminopropyl) ether, bis-aminopropyl diglycol, C12-16 alkyl PEG-7 methacrylate/perfluoro-hexylethyl methacrylate copolymer and perfluorononylethyl carboxydecyl PEG-10 dimethicone on hair type "AFRO" NATURAL CURLY (Tab. 1A) and on hair of "CAUCASIAN” (also called “european”) NATURAL CURLY type (Tab. 1B).
- the mixtures were applied to clean and dry hair with an exposure time of about 60 minutes.
- the hair treated with the mixtures of the present invention were rinsed with warm water for about 3 minutes in order to eliminate the excess of substances present in the composition.
- mixtures described in EP 2595705 when used according to the method described there, allow to obtain only the smoothing of the hair.
- the mixtures of the present invention allow to obtain, in addition to smoothing, a significant reduction in the quantity of water that the hair can absorb and a greater tensile strenght.
- the hair with a single application becomes: smooth, waterproof and more resistant to breaking by traction. Furthermore, the tests show that optimal results are achieved only with the combination of the three components (a), (b) and (c), otherwise the tests are not satisfactory.
- compositions listed in Tables 2A and 2B were prepared. Both tables show the details of the results obtained in volume reduction (frizz) with mixtures containing maleic acid, bis-aminopropyl diglycol and acrylates/perfluorohexylethyl methacrylate copolymer.
- Tables 2A and 2B show how the advantages that the mixtures of the present invention allow to bring to the current technique in terms of reducing the frizz effect of keratin fibers are evident compared to the mixtures described in EP 2595705. Furthermore, the tests show that optimal results are achieved only with the combination of the three components (a), (b) and (c), otherwise the tests are not satisfactory.
- Tables 3A and 3B were prepared. Both tables show the details of the results obtained in curves reduction (smoothing). Tables 3A and 3B show how the advantages that the mixtures of the present invention allow to bring to the current technique in terms of reducing the frizz effect of keratin fibers are evident compared to the mixtures described in EP 2595705.
- Tables 4A and 4B show how the advantages that the mixtures of the present invention allow to bring to the current technique in terms of reducing the frizz effect of keratin fibers are evident compared to the mixtures described in EP 2595705.
- the various mixtures object of the invention show the ability to smooth the curly hair fiber in a way lasting over time (even 6 shampoos), to make it less permeable to water (a property that can also be found after 6 shampoos) and the property to make the hair fiber more resistant to traction (even after 6 shampoos).
- the same kind of results are obtained in the case of reducing the "frizz" effect.
- PO polypropylene oxide
- EO polyethylene oxide
- the essence of the present invention lies precisely in having found the right combination of three molecules already known, and used individually or in association with other molecules different from those of the invention, for the treatment of keratin fibers. It has surprisingly been found that the combined use of the three substances that make up the mixture of the invention brings considerable advantages to the keratin fibers through a single application and after rinsing the quantities of substances not absorbed by the capillary fibers (with a consequent increase in the speed of application and greater protection of the physical-mechanical integrity of the hair fibers) compared to the technique of not rinsing the fibers.
Abstract
The present invention relates to a cosmetic composition comprising: (a) a saturated or unsaturated carboxylic acid, and their derivatives, with carbon numbers lower than 12 or mixtures thereof; (b) a fluorinated polymer selected from perfluoro-acrylic or perfluoro-silicone polymers or mixtures thereof; (c) an amino substance selected from alkoxylated polyamines or mixtures thereof; (d) one or more of the ingredients commonly used in the cosmetic industry listed in EU Decision 710/2019, (e) pH of the mixture between 0.5 and 10.0. The present invention is also aimed at the use of the composition for application on keratin fibers.
Description
COSMETIC COMPOSITION FOR THE TREATMENT OF KERATINIC FIBERS AND METHOD COMPRISING THE APPLICATION OF SAID COMPOSITION TO THE KERATINIC FIBERS
Technical field
The present invention relates to cosmetic compositions for the treatment of keratin fibers and to the method for their application on a keratin substrate. In particular, the keratin fibers and the keratin substrate are made up of human hair.
The compositions of the invention are prepared in a cosmetically acceptable medium and the cosmetic treatment method of the keratin substrate provides for the application step on said keratin substrate of a composition as defined below By means of a single application of at least one of the compositions of the invention, placed in contact with frizzy, curly or wavy keratin fibers (such as hair), it is possible to obtain smooth keratin fibers, with reduced water absorption capacity and greater tensile strength compared to untreated fibers.
Prior art It is known that the hair of the human species is composed of a mass of microfibrils composed in turn of amino acidic chains linked together in a different way according to the genetic heritage possessed by the individual.
This category of proteins has a high content of sulfur amino acids (especially cystine and cysteine) as well as significant quantities of acidic amino acids (especially aspartic acid and glutamic acid) and basic amino acids (especially lysine, histidine and arginine).
In WO2019179745 the chemical-physical characteristics of both the "natural" keratin fibers and those that have suffered damage from the application of cosmetic treatments known to the current state of the art (for instance: bleaching, permanent waving, dyeing, straightening or chemical stretching (bleaching, waving, dyeing, straightening or stretching) are well described.
The fibers SUBJECTED to this type of treatment tend to take on a dull, frizzy appearance over time with poor tensile strength (they break easily).
An improvement in hair straightening procedures is described in patents EP2538916 and EP2595705 which relate to a method for modifying the appearance of keratin fibers through the use of particular operating conditions in
the presence of glyoxylic acid to obtain, in a semi-permanent way, the modification of said keratin fibers by transforming them from curved or curly into smooth fibers.
Still in the context of improving the appearance of hair, document WO2011156311 describes the use of compositions based on phenolic compounds and polyamines to allow the protection of a keratin substrate from high energy (UV) sun rays. The composition can be applied indifferently on the hair and on the skin.
US2004191200 discloses cosmetic compositions comprising a thickener in combination with fluorinated polymers in order to coat the keratin fibers of the eyelashes increasing their volume, with a lengthening and separating effect. The composition is applied as it is on the eyelashes and eyebrows.
WO201 6033591 describes a hair smoothing composition essentially consisting of at least one derivative of glyoxylic acid formed by the reaction of glyoxylic acid with at least one alpha, beta or gamma amino acid.
US5344903 claims a method of producing copolymers based on perfluoroalkylethyl (meta) acrylates polymerized with alkyl (meta) acrylates for the manufacture of copolymers intended to be used as waterproofing against water and/or oils in natural or synthetic fabrics such as: cotton, cellulose, wool, silk, polyamide as well as on paper and leather.
The need is now felt to improve the procedures for applying glyoxylic acid and make the hair smoothing process faster and more efficient, as well as less stressful for the hair, compared to what is described in EP2538916 and EP2595705. In this patent is in fact described that the hair on which the glyoxylic acid is applied is dried and subjected to straightening at a temperature of 200 ± 50°C without prior rinsing aimed at reducing the amount of substances deposited on the hair during the application of the compositions object of that invention.
Also known (patent application WO2014072645) is a method of fast smoothing/straightening of the hair in which an aqueous cosmetic composition is applied to the hair comprising glyoxylic acid, lactic acid, an amino-modified polyether-silicone copolymer (INCI name: PEG-40/PPG-8 Methylaminopropyl/Hydroxypropyl Dimethicone Copolymer). The cosmetic composition is applied to the keratin fibers for 20 minutes; after which, without performing a rinsing process, a second composition based on fatty alcohols and
cationic conditioning agents is applied for 10 minutes; and finally rinse and dry the hair, which is then smoothed with the plate.
However, this method does not allow to persistently smooth/stretch and/or reduce the volume of the hair as the composition applied is not able to modify the keratin fibers and is completely washed away after the first wash. These adverse effects were tested in the comparison tests enclosed to this description in the “Examples” section.
Therefore, the present invention aims to develop a composition that allows to obtain a rapid smoothing/stretching of the hair, associated with a reduction in the volume of the hair, effects that are obtained in an efficient and persistent way while limiting the degradation of the hair. Surprisingly, it has been possible to verify that the smoothing/stretching effects persist even after numerous washings without the need for repeated applications of the composition after each wash.
Summary of the invention It has now been surprisingly found that the hair on which glyoxylic acid has been applied can be rinsed to remove excess acid and then directly straightened. This allows the hair to return to a pH similar to the physiological one, before straightening at high temperature, thus minimizing stress on the hair.
This simplification is obtained with the composition of the invention which comprises the combination of glyoxylic acid, or other carboxylic acid of similar properties, with an alkoxylated polyamine and with a fluorinated polymer, as described below.
The invention therefore relates to a composition comprising: a) a saturated or unsaturated carboxylic acid, and/or its organic and inorganic salts and reaction products between amino acids and carboxylic acids, with carbon number lower than 12, or mixtures thereof; b) a fluorinated polymer selected from perfluoro-acrylic or perfluoro-silicone polymers, or mixtures thereof; c) a polyamine substance selected from alkoxylated polyamines or mixtures thereof.
The composition of the invention may further comprise one or more of the ingredients commonly used in the cosmetic industry.
The substances commonly used in the manufacture of cosmetic products are to be understood as those listed in the International Cosmetic Ingredients Dictionary and Handbook, published periodically by the American "Personal Care Products Council" 1620 L Street, NW Washington, D.C.).
These are classified into categories comprising, but not limited to, the following categories: anti-caking agent, antifoam, antimicrobial, antioxidant, antistatic, astringent, binder, whitening, buffering, swelling, chelating, cleansing, cosmetic dye, denaturing, deodorant, detangling, emollient, emulsifier, emulsion stabilizer, film-forming, flavoring, foaming, gelling, hair conditioning, hair fixative, hair waving or smoothing, moistening, hydrotropic, masking, moisturizing, oxidizing, pearlescent, perfuming, plasticizing, preservative, propellant, reducing, re greasing, refreshing, soluble smoothing, soothing stabilizer, surfactant, tonic, UV filter, viscosity control substances.
The pH of the composition is between 0.5 and 10.0.
The invention also relates to the method of application of said composition on the keratin fibers of the human species.
Further purposes and advantages will become evident from the following detailed description of the invention.
Detailed description
In the context of this description, the terms "Caucasian" type hair and "european" type hair are to be considered synonyms.
According to a preferred - but not limiting - embodiment, the present invention relates to a mixture of organic substances, dispersed in a cosmetically acceptable medium, and at least one method of applying the same mixture to the keratin fibers.
The composition according to the invention comprises:
(a) at least one saturated or unsaturated carboxylic acid, its derivatives and salts selected from: organic and inorganic salts and reaction products between
amino acids and carboxylic acids, said carboxylic acid having a number of carbon atoms lower than 12, and mixtures thereof;
(b) at least one fluorinated polymer selected from perfluoro-acrylic or perfluoro- silicone polymers, or mixtures thereof; (c) at least one alkoxylated polyamine or mistures thereof.
The composition further comprises one or more of the ingredients commonly used in the cosmetic industry listed in the EU Decision 710/2019.
The composition of the invention is an aqueous composition with a pH between 0.5 and 10.0.
The concentration of each ingredient (a), (b) or (c) is in the range 0.01-30.0% with respect to the overall composition, the rest being water or an aqueous solution applicable on the hair and containing one or more cosmetically acceptable components. The composition can be used as such on the hair as an aqueous solution or it can be formulated as a cream or gel according to the knowledge of the cosmetic technique, as for instance described in WO2018195614.
The individual components of the composition are detailed as follows: a) Saturated or unsaturated aliphatic carboxylic acids, derivatives and salts thereof having a number of carbon atoms lower than 12 such as: adipic acid, ascorbic acid, citric acid, tartaric acid, malonic acid, glyoxylic acid, dihydroxyacetic acid, fumaric acid, itaconic acid, maleic acid, lactic acid, malic acid, glutaric acid, succinic acid, glycolic acid, and mixtures thereof. b) Fluorinated polymers representable by the following structures: b.1 ) Silicones with "pendant" perfluorinated chain:
• Fluorosilicones insoluble in water with molecular weight between 500 and 200,000 daltons of general formula (W):
(Formula W) wherein: x’= integer between 1 and 50, m’= integer between 10 and 1000, n’= integer between 10 and 1000.
• Water-soluble fluorosilicones with the following structural formula and with a molecular weight between 500 and 200,000 daltons:
(Formula W1) wherein: a = integer between 10 and 1000, b = integer between 10 and 1000, c = integer between 10 and 1000, n = integer between 1 and 100, x = integer between 10 and 100
The following fluorosilicones belong to these families:
• Perfluorononyl Dimethicone (Cas No 259725-95-6) and
• Perfluorononylethyl Carboxydecyl PEG-10 Dimethicone (CAS n. 500218-
22-4) produced by Phoenix Chemical, Inc. - NJ - USA b.2) - Acrylic and/or methacrylic polymers with non-fluorinated backbone and pendant perfluorinated alkyl groups selected from:
• Diethylaminoethyl methacrylate/hydroxyethyl methacrylate/perfluoro- hexylethyl methacrylate crosspolymer (produced by Hangzhou
Utanpharma biology co. Ltd - China)
• C6-14 Perfluoroalkylethyl Acrylate/Hydroxyethyl methacrylate/perfluoro- hexylethyl methacrylate crosspolymer (produced by Hangzhou
Utanpharma biology co. Ltd - China)
• C12-16 Alkyl PEG-7 Methacrylate/Perfluorohexylethyl Methacrylate copolymer (produced by Biochim srl Milan - Italy)
• Acrylates/Perfluorohexylethyl Methacrylate Copolymer (CAS n. 1557087-
30-5) (produced by SEITZ Gmbh - Germany)
• PEG-10 acrylate/perfluorohexylethyl acrylate copolymer (FDA - USA UNII
D76Z87928N Rn 910476-54-9) and mixtures thereof.
Substances described for their chemical, physical and toxicological properties in the "Safety Assessment on Polyfluorinated Polymers as Used in cosmetics - Final Report" Cosmetic Ingredient Review USA - October 16, 2018 and listed in the european database https://ec.europa.eu/growth/tools-databases/cosing/ of substances for cosmetic use and in Commission Decision (EU) 2019/701 of 5 April 2019 (Official Journal of the european community of 08/05/2019).
(c) Alkoxylated polyamines.
Preferred non-limiting examples of suitable alkoxylated polyamines comprise amino molecules, which have at least two primary nitrogen atoms, meaning by this term that at least two primary amino functional groups are present in each molecule, and comprise, but are not limited to, substances corresponding to the following standard formulas: c.1) - Polyetheramines composed of oxyethylene units (C2)
Where xa is an integer comprised between 1 and 50 c.2) - Polyetheramines composed of oxypropylene units (C3)
Where yβ is an integer comprised between 1 and 50 c.3) - Polyetheramines composed of mixtures of oxypropylene (C3) and oxyethylene (C2) units
Where ca, yβ and zc are integers comprised between 1 and 50 c.4) - Polyetheramines composed of tetrahydrofuran units (C4)
Where mδ is an integer comprised between 1 and 50
Examples of the alkoxylated polyamines for use in the present invention comprise, for instance, diamine compounds belonging to the Jeffamine series, such as the Jeffamine® D and Jeffamine® ED series, JEFFAMINE EDR148 and JEFFAMINE EDR, JEFFAMINE D230, JEFFAMINE D400, JEFFAMINE D2000, JEFFAMINE D4000, JEFFAMINE HK-511, JEFFAMINE ED600, JEFFAMINE ED900 and
JEFFAMINE ED2003 available from Fluntsman Corporation, Salt Lake City, Utah USA. c.5) - alkoxylated polyamines corresponding to the formula (W6):
NH2(CH2)x°(0CH2CH20)y°(CH2)z°NH2 Formula (W6) where x° and z° are integers between 0 and 3 and y° is an integer between 2 and 100.
Examples of substances belonging to these families are the following:
• PPG-70 bis-(2-aminopropyl) ether (CAS no. 9046-10-0), Poly (propylene glycol) bis (2-aminopropyl ether) - MERCK), · Bis-aminopropyl diglycol (Cas no. 4246-51-9) (BAXXODUR EC 130 -
BASF).
The composition of the invention is a ready-to-use mixture comprising substances (a), (b) and (c) dissolved or dispersed in a cosmetically acceptable aqueous medium having a pH between 0.5 and 10.0. The concentration of each ingredient (a), (b) or (c) is in the range 0.01-30.0% with respect to the overall composition, the rest being water or a cosmetically acceptable medium (e.g. cream or gel) applicable on the hair.
The term "cosmetically acceptable medium" means the set of substances of common use in the cosmetic art listed in the International Cosmetic Ingredient Dictionary and Handbook published periodically by the American "Personal Care Products Council" 1620 L Street, NW Washington, DC), classified as: anti-caking agent, anti-dandruff, anti-foam, antimicrobial, antioxidant, antistatic, astringent, binder, whitening, buffering, swelling, chelating, cleansing, cosmetic dyeing, denaturing, detangling, emollient, emulsifying, emulsion stabilizer, film-forming, flavoring, foaming, gelling, conditioning, fixative, hair waving or smoothing, moistening, hydrotropic, masking, moisturizing, mattifying, oxidizing, pearlescent, perfuming, plasticizing, solvent, preservative, smoothing, stabilizing, soothing, surfactant, UV filter, viscosity control substances; as also listed in the text of decision no. 701/2019 published in the european Official Journal of 8 May 2019 and in the european database of substances in common use in the cosmetic paper: https://ec.europa.eu/growth/tools-databases/cosing/.
The compositions of the invention can be formulated in liquid or semi-liquid, fluid or creamy form, such as: solutions, suspensions, lotions, creams.
The compositions of the invention are applied to the hair with a method that comprises the following basic steps: I. Applying an amount of the composition of the invention to clean hair (dry or damp);
II. Maintaining said composition in contact with the hair for 5 to 120 minutes;
III. Rinsing the hair and dehumidifying it, drying it with hot air, for instance with a hairdryer, IV. Straightening the hair with a hair straightener at a temperature of about 200 ± 50°C;
The process of the invention has shown that the keratin fibers after treatment are smooth, even after repeated washes (more than 6), tend to absorb less water in washes and tend to have greater resistance to breakage of the fibers themselves than hair treated with techniques or mixtures commonly used in the cosmetic art.
Step (III), which involves the elimination of the excess amount of product compared to that which the single hair can absorb, by means of rinsing with water has proved to be very important in terms of performance as it allows to have a hair at the end of the treatment less damaged (stressed) with consequent improvement of both its appearance and its physical-mechanical characteristics (the hair is more resistant to breakage).
Some experiments were performed to verify the better performance of the mixture object of the invention compared to mixtures already known in the state of the art.
In particular, comparisons were made between the mixtures having the best performances described in the patent documents EP2595705 and WO201 4072645 and the mixtures object of the present invention with the aim of highlighting the surprising effects achieved with this composition.
The following examples are provided to illustrate the invention and are not to be considered limitative of its scope.
APPLICATION EXAMPLES:
Tests were carried out on some of the mixtures of substances belonging to the families of organic substances described in points (a), (b), (c), always used in mixture with each other and dispersed or dissolved in a cosmetically acceptable medium by comparing them with similar mixtures of substances covered by patent documents EP2595705 and WO2014072645. The various components used in the tests illustrated below are summarized only for ease of explanation, and the various components used in the tests illustrated below are not to be considered in limiting terms: (a) Carboxylic acid
(b) Fluorinated polymer
(c) Polyamine
(d) Cosmetically acceptable components
(x) mixture of substances containing the copolymer known under the trade name of "Silsoft A+" described and exemplified in WO2014072645
The chemical names of the substances are mentioned using the INCI nomenclature mentioned in the EU Decision n. 701/2019 of 08/05/ or reference has been made to the chemical names commonly used in the field of organic chemistry or to the nomenclature of the Personal Care Products Council On-Line INFOBASE database available at the internet address https://online.personalcarecouncil.org
The compositions of the invention were compared with the best compositions based on glyoxylic acid dissolved in a cosmetically acceptable medium as described in EP2595705 with the aim of comparing the results obtainable from the composition object of the present invention with respect to the "state of the art" in hair smoothing described in patent EP2595705.
For all the tests and in all the tables the evaluations were conducted according to the following scheme:
Example 1:
Comparison of the reduction of the curly aspect, of the waterproofing effect and of the tensile strength of "afro" and "Caucasian" (also known as "european") type hair, obtainable on the same using the different types of mixtures object of the present invention, with respect to mixtures covered by patent EP2595705.
The compositions listed in Tables 1A and 1B were prepared: both tables show the details of the results obtained in curves reduction (smoothing) with mixtures containing glyoxylic acid, PPG-70 bis-(2-aminopropyl) ether, bis-aminopropyl diglycol, C12-16 alkyl PEG-7 methacrylate/perfluoro-hexylethyl methacrylate copolymer and perfluorononylethyl carboxydecyl PEG-10 dimethicone on hair type "AFRO" NATURAL CURLY (Tab. 1A) and on hair of "CAUCASIAN" (also called "european") NATURAL CURLY type (Tab. 1B).
The mixtures were applied to clean and dry hair with an exposure time of about 60 minutes.
Subsequently, the hair treated with the mixtures of the present invention were rinsed with warm water for about 3 minutes in order to eliminate the excess of substances present in the composition.
The hair treated with the invention object of the patent EP2595705 (as described in tables 1 A and 1 B) have not been rinsed with water.
Then all hair was dried with a hairdryer at a temperature of about 60°C until it was dried according to common use in cosmetics. Once all the hair samples had dried, they were subjected to plating with a special tool in common use ("flat iron") at a temperature of about 210°C.
Then the hair was subjected to six shampoos applying the common way of use (shampoo application, contact for 5 minutes, rinsing with warm water for 5 minutes, blow-drying) and evaluation of the results as described in table 1. Tables 1A and 1B show that the advantages that the mixtures of the present invention allow to bring to the current technique in the field of smoothing of keratin fibers with respect to the mixtures described in EP 2595705 are evident.
The mixtures described in EP 2595705, when used according to the method described there, allow to obtain only the smoothing of the hair. On the contrary, the mixtures of the present invention allow to obtain, in addition to smoothing, a significant reduction in the quantity of water that the hair can absorb and a greater tensile strenght.
Basically, the hair, with a single application becomes: smooth, waterproof and more resistant to breaking by traction. Furthermore, the tests show that optimal results are achieved only with the combination of the three components (a), (b) and (c), otherwise the tests are not satisfactory.
Example 2:
Comparison of the reduction of the frizzy appearance, of the waterproofing effect and of the tensile strength of "afro" and "Caucasian" (also known as "european")
type hair, obtainable on the same using the different types of mixtures object of the present invention, with respect to mixtures covered by patent EP2595705.
The compositions listed in Tables 2A and 2B were prepared. Both tables show the details of the results obtained in volume reduction (frizz) with mixtures containing maleic acid, bis-aminopropyl diglycol and acrylates/perfluorohexylethyl methacrylate copolymer.
Tables 2A and 2B show how the advantages that the mixtures of the present invention allow to bring to the current technique in terms of reducing the frizz effect of keratin fibers are evident compared to the mixtures described in EP 2595705. Furthermore, the tests show that optimal results are achieved only with the combination of the three components (a), (b) and (c), otherwise the tests are not satisfactory.
Example 3:
Comparison of the reduction of the curly aspect, of the waterproofing effect and of the tensile strength of "afro" and "Caucasian" (also known as "european") type hair, obtainable on the same using the different types of mixtures object of the present invention, with respect to mixtures covered by patent EP2595705.
The compositions listed in Tables 3A and 3B were prepared. Both tables show the details of the results obtained in curves reduction (smoothing). Tables 3A and 3B show how the advantages that the mixtures of the present invention allow to bring to the current technique in terms of reducing the frizz effect of keratin fibers are evident compared to the mixtures described in EP 2595705.
Furthermore, the tests show that optimal results are achieved only with the combination of the three components (a), (b) and (c), otherwise the tests are not satisfactory.
Example 4:
Comparison of the reduction of the frizzy appearance, of the waterproofing effect and of the tensile strength of "afro" and "Caucasian" (also known as "european") type hair, obtainable on the same using the different types of mixtures object of the present invention, with respect to mixtures covered by patent EP2595705.
The compositions listed in Tables 4A and 4B were prepared. Both tables show the details of the results obtained in volume reduction (frizz).
Tables 4A and 4B show how the advantages that the mixtures of the present invention allow to bring to the current technique in terms of reducing the frizz effect of keratin fibers are evident compared to the mixtures described in EP 2595705.
Furthermore, the tests show that optimal results are achieved only with the combination of the three components (a), (b) and (c), otherwise the tests are not satisfactory.
Example 5:
Similarly, to Examples 1-4, tests were carried out with the compositions of the invention in comparison with the tests shown in the example on pages 26 and 27 of the patent application WO2014072645. The results are shown in Tables 5-8 and there it is highlighted how the performances obtainable with the object of the present invention are much higher than those of the example presented in the patent application WO2014/072645.
With the aim of demonstrating the total difference between the performances obtainable with the object of the present invention with respect to the example reported on pages 26/27 of application WO2014/072645, tests were organized in parallel between the mixtures object of the invention and the relative methods of application and the mixtures and methods of use described in the aforementioned application.
From the tests performed on "afro" and "european" (also known as "Caucasian") hair, total absence of performance similar to that obtainable with the object of the invention was found.
In particular, the various mixtures object of the invention show the ability to smooth the curly hair fiber in a way lasting over time (even 6 shampoos), to make it less permeable to water (a property that can also be found after 6 shampoos) and the property to make the hair fiber more resistant to traction (even after 6 shampoos). The same kind of results are obtained in the case of reducing the "frizz" effect.
Conversely, the mixtures described in the example on pages 26 and 27 of application WO2014/072645, applied in the manner mentioned in the same application both on curly hair (with the intention of making it smooth) and on "frizzy" hair (with the intent to reduce its volume) show the inability of the formulations described to give the hair fibers the properties found with the mixtures relating to the present invention. In other words, there is no smoothing effect after 6 shampoos, no kind of waterproofing and no increase in the tensile strength of the fiber. It would seem that these are substances intended to be used for the modeling (finish) of the hair fibers in the final phase of the cosmetic procedure without modifying the hair fiber with the consequence that the characteristics given to the fibers are lost at the first wash.
Always referring to the known art, in the patent document WO2014/072645 a copolymer is mentioned which has the commercial name of "SILSOFT A+" whose macromolecule is composed of an alternation of silicone hydrophobic blocks and polyether blocks, as per Scheme 1 (taken from the technical data sheet SILSOFT A+ downloadable from the web at
Scheme 1
PO = polypropylene oxide; EO = polyethylene oxide
As shown in scheme 1, Silsoft A+ is a very different macromolecule from those of the present invention.
First of all because there are two (2) different types of monomers (an amino- silicone polymer block and a mixed polyethylene + polypropylene glycol polymer block) joined together via the amino silicone nitrogen atom.
Differently from the aminoalkoxide polymers of the present invention, in Silsoft A+ there are no primary amino groups (-NH2) which, as is known, have a much higher reactivity than the tertiary amino groups towards the amino acid residues present in the hair fibers.
The essence of the present invention lies precisely in having found the right combination of three molecules already known, and used individually or in association with other molecules different from those of the invention, for the treatment of keratin fibers.
It has surprisingly been found that the combined use of the three substances that make up the mixture of the invention brings considerable advantages to the keratin fibers through a single application and after rinsing the quantities of substances not absorbed by the capillary fibers (with a consequent increase in the speed of application and greater protection of the physical-mechanical integrity of the hair fibers) compared to the technique of not rinsing the fibers.
Claims
(Formula W1) wherein: a = integer between 10 and 1000, b = integer between 10 and 1000, c = integer between 10 and 1000, n = integer between 1 and 100, x = integer between 10 and 100 acrylic and/or methacrylic polymers with non-fluorinated backbone and pendant perfluorinated alkyl groups selected from:
• Diethylaminoethyl methacrylate/hydroxyethyl methacrylate/perfluoro- hexylethyl methacrylate crosspolymer
• C6-14 Perfluoroalkylethyl Acrylate/Hydroxyethyl methacrylate/perfluoro- hexylethyl methacrylate crosspolymer · C12-16 Alkyl PEG-7 Methacrylate/Perfluorohexylethyl Methacrylate copolymer
• Acrylates/Perfluorohexylethyl Methacrylate Copolymer having CAS n. 1557087-30-5
• PEG-10 acrylate/perfluorohexylethyl acrylate copolymer with FDA - USA UNII D76Z87928N Rn 910476-54-9
• Perfluorononyl Dimethicone having CAS n. 259725-95-6,
• Perfluorononylethyl Carboxydecyl PEG-10 Dimethicone having CAS n. 500218-22-4,
• C12-16 Alkyl PEG-7 Methacrylate/Perfluorohexylethyl Methacrylate copolymer
• C6-14 perfluoroalkylethyl acrylate/HEMA copolymer
• Perfluorononylethyl Carboxydecyl PEG-10 Dimethicone and mixtures thereof.
6) The composition according to any one of claims 1-5, wherein the at least one fluorinated polymer is present in an amount between 0.01 and 30% by weight, preferably between 0.1 and 25% by weight, more preferably between 0.25 and 20% by weight, with respect to the total weight of the composition.
7) The composition according to any one of claims 1-6, wherein the at least one alkoxylated polyamine is selected from: c.1) - Polyetheramines composed of oxyethylene units (C2)
Where xa is an integer comprised between 1 and 50 c.2) - Polyetheramines composed of oxypropylene units (C3)
Where yβ is an integer comprised between 1 and 50 c.3) - Polyetheramines composed of mixtures of oxypropylene (C3) and oxyethylene (C2) units
Where xa, yβ and zc are integers comprised between 1 and 50 c.4) - Polyetheramines composed of tetrahydrofuran units (C4)
Where GPd is an integer comprised between 1 and 50 c.5) - alkoxylated polyamines of formula (W6): NH2(CH2)x°(0CH2CH20)y° (CH2)z°NH2 Formula (W6) where x° and z° are integers between 0 and 3 and y° is an integer between 2 and 100;
• PPG-70 bis-(2-aminopropyl) ether having CAS n. 9046-10-0,
• Bis-Aminopropyl Diglycol with CAS n. 4246-51-9, and mixtures thereof.
8) The composition according to any one of claims 1-7, wherein the at least one alkoxylated polyamine is present in the composition at a concentration ranging from 0.01 to 30% by weight, preferably from 0.1 to 25% by weight, more preferably between 0.25 and 20% by weight, with respect to the total weight of the composition.
9) The composition according to any one of claims 1-8, wherein the cosmetically acceptable aqueous solution comprises at least one cosmetically acceptable ingredient selected from: anti-caking agent, antifoam, antimicrobial, antioxidant, antistatic, astringent, binder, whitening, buffering, swelling, chelating agent, cleanser, cosmetic dye, denaturing, deodorant, detangling, emollient, emulsifier, emulsion stabilizer, film-forming, flavoring, foaming, gelling, hair conditioning, hair fixative, hair waving or smoothing, humectant, hydrotrope, masking, moisturizing, oxidizing, pearlescent, perfuming, plasticizing, preservative, propellant, reducing, re-greasing, refreshing, soluble smoothing, soothing stabilizer, surfactant, tonic, UV filter, viscosity control substances and mixtures thereof. 10) The composition according to any one of claims 1-9 wherein the at least one cosmetically acceptable ingredient is present in an amount comprised between 0.1 and 90% by weight, preferably between 0.5 and 80% by weight, more preferably between 0.5 and 70% by weight, with respect to the total weight of the composition. 11) The composition according to any one of claims 1-10 which is a ready-to- use mixture and each of the components (a), (b) and (c), has a concentration in the range 0.01-30.0 % of the overall composition.
12) The composition according to any one of claims 1-11 which is formulated in liquid or semi-liquid, fluid or creamy form as: solutions, suspensions, lotions, creams.
13) A method for the treatment of keratin fibers, preferably the hair, which comprises the steps of:
- applying on the fibers a composition as defined in claims 1 to 12,
- maintaining said composition in contact with the fibers for 5 to 120 minutes;
- rinsing the fibers and dehumidifying them with hot air; smoothing the fibers with a hair straightener at a temperature of about 200
± 50°C.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT202000028970 | 2020-11-30 | ||
| PCT/IB2021/060915 WO2022112961A1 (en) | 2020-11-30 | 2021-11-24 | Cosmetic composition for the treatment of keratinic fibers and method comprising the application of said composition to the keratinic fibers |
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| Publication Number | Publication Date |
|---|---|
| EP4251123A1 true EP4251123A1 (en) | 2023-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| EP21824666.8A Pending EP4251123A1 (en) | 2020-11-30 | 2021-11-24 | Cosmetic composition for the treatment of keratinic fibers and method comprising the application of said composition to the keratinic fibers |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20240000679A1 (en) |
| EP (1) | EP4251123A1 (en) |
| WO (1) | WO2022112961A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2901471B1 (en) * | 2006-05-24 | 2010-06-04 | Oreal | PROCESS FOR DETERMINING KERATIN FIBERS WITH A HEATING MEANS AND AN ACID DERIVATIVE |
| EP2670380A4 (en) * | 2011-02-04 | 2015-02-11 | Ali N Syed | Enhanced hair straightening system |
| FR2997845B1 (en) * | 2012-11-09 | 2015-03-06 | Oreal | METHOD FOR SMOOTHING A HAIR FROM A COMPOSITION CONTAINING GLYOXYLIC ACID AND / OR ONE OF ITS DERIVATIVES |
| EP2883535A1 (en) * | 2013-12-13 | 2015-06-17 | Alfa Parf Group S.p.a. | Compositions and methods for simultaneous reshaping and direct coloring of hair |
| JP6293717B2 (en) * | 2014-12-05 | 2018-03-14 | 花王株式会社 | Hair deformation treatment agent |
| JP2019026574A (en) * | 2017-07-27 | 2019-02-21 | 株式会社 資生堂 | Hair strengthening agent |
| EP3659577A1 (en) * | 2018-11-29 | 2020-06-03 | Kao Germany GmbH | Keratin fiber straightening composition, process, and kit-of-parts |
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| US20240000679A1 (en) | 2024-01-04 |
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